HATS-22b, HATS-23b and HATS-24b: three new transiting super-Jupiters from the HATSouth project

Bento, J. and Schmidt, B. and Hartman, J. D. and Bakos, G. A. and Ciceri, S. and Brahm, R. and Bayliss, D. and Espinoza, N. and Zhou, G. and Rabus, M. and Bhatti, W. and Penev, K. and Csubry, Z. and Jordan, A. and Mancini, L. and Henning, T. and de Val-Borro, M. and Tinney, C. G. and Wright, D. J. and Durkan, S. and Suc, V. and Noyes, R. and Lazar, J. and Papp, I. and Sari, P. (2017) HATS-22b, HATS-23b and HATS-24b: three new transiting super-Jupiters from the HATSouth project. Monthly Notices of the Royal Astronomical Society, 468 (1). pp. 835-848. ISSN 0035-8711

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Abstract

We report the discovery of three moderately high-mass transiting hot Jupiters from the HATSouth survey: HATS-22b, HATS-23b and HATS-24b. These planets add to the number of known planets in the similar to 2MJ regime. HATS-22b is a 2.74 +/- 0.11MJ mass and 0.953(-0.029)(+0.048) R-J radius planet orbiting a V = 13.455 +/- 0.040 sub-solar mass (M-* = 0.759 +/- 0.019M(circle dot); R-* = 0.759 +/- 0.019 R-circle dot) K-dwarf host star on an eccentric (e = 0.079 +/- 0.026) orbit. This planet's high planet-to-stellar mass ratio is further evidence that migration mechanisms for hot Jupiters may rely on exciting orbital eccentricities that bring the planets closer to their parent stars followed by tidal circularization. HATS-23b is a 1.478 +/- 0.080M(J) mass and 1.69 +/- 0.24 R-J radius planet on a grazing orbit around a V = 13.901 +/- 0.010 G-dwarf with properties very similar to those of the Sun (M* = 1.115 +/- 0.054; R-* = 1.145 +/- 0.070). HATS24b orbits a moderately bright V = 12.830 +/- 0.010 F-dwarf star (M-* = 1.218 +/- 0.036M circle dot; R-* = 1.194(-0.041)(+0.066) R circle dot). This planet has a mass of 2.39+0.21 -0.12MJ and an inflated radius of 1.516(-0.065)(+0.085) R-J.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version deposited in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 02 Sep 2019 04:59
Last Modified: 10 Sep 2019 02:07
Uncontrolled Keywords: photometric, spectroscopic, HATS-22, GSC 6664-00373, HATS-23, GSC 8382-01464, HATS-24, GSC 9054-00129, planetary systems, stars
Fields of Research : 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
Identification Number or DOI: 10.1093/mnras/stx500
URI: http://eprints.usq.edu.au/id/eprint/36370

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